RESUMEN

Alpha-gal syndrome (AGS) is an immunoglobulin E-mediated hypersensitivity to galatcose-alpha-1,3-galactose (alpha-gal), a carbohydrate compound present in nonprimate mammalian products. Initial exposure to alpha-gal most often occurs through a tick bite, most commonly the lone star tick in the United States. Repeated exposure to alpha-gal may elicit severe allergic reactions, including anaphylaxis. The allergy restricts dietary intake and may significantly impact perioperative risk, as many medications, anesthetics, and intraoperative surgical products utilize bovine or porcine-derived agents, including those containing magnesium stearate, glycerol, and gelatin. Here, we review the perineurosurgical care of two individuals with AGS and highlight pertinent clinical practices and perioperative management of these patients.

RESUMEN

Childhood food allergies are a growing public health problem. Once the offending food allergens have been identified, a strict elimination diet is necessary in treatment or prevention of most of the allergic reactions. Accidental food ingestion can lead to severe anaphylaxis. Food- derived substances can be used in medications at various stages of the manufacturing process. In this review, the possible roles of medications which may contain egg, red meat, gelatin, and fish allergens on allergic reactions in children with food allergy were evaluated.

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RESUMEN

Surgiflo Haemostatic Matrix is an absorbable gelatin matrix hemostatic material that has been widely used in various surgical operations to assist hemostasis. Nonetheless, as biologically active agents (contains porcine gelatin), there is potential for allergic reactions to these products. Here, we report the case of a 71-year-old man who had intraoperative anaphylaxis with cardiovascular events to gelatin associated with the use of a topical hemostatic agent (Surgiflo). The patient reported a history of red meat allergy and tick bites during his allergological examination after anaphylaxis. He also had high levels of specific IgE antibodies towards alpha-gal. Special consideration should be given before administering bovine- or porcine-derived gelatin products during surgery to patients with animal-related allergies, such as alpha-gal or gelatin allergy and an atopic background.

RESUMEN

Vaccine adverse events and controversial safety issues have occurred in recent decades in Japan: aseptic meningitis following the measles-mumps-rubella combined vaccine (MMR), anaphylaxis after immunization with live virus vaccines and inactivated split influenza vaccine, an increased incidence of febrile illness following the simultaneous administration of inactivated vaccines, and chronic pain with neurological illness after immunization with the human papilloma virus vaccine (HPV). Vaccine adverse events are a matter of concern for the public as well as general practitioners; some are within the range of assumptions that adverse reactions after live attenuated vaccines are related to the nature of their parental wild-type viruses. Vaccines stimulate the innate immunity of host immunological defense mechanisms and induce the development of specific acquired immunity. Some adverse events related to autoimmune responses have been reported, such as idiopathic thrombocytopenic purpura and acute disseminated encephalomyelitis (ADEM). Although a plausible relationship was not demonstrated, the possibility of an association cannot be denied. The pathogenicity of adverse reactions was investigated for anaphylactic reactions, systemic and local reactions following vaccinations. Initial innate immune responses are essential for the development of acquired immunity and are related to adverse events from different viewpoints.

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RESUMEN

Specific immunoglobulin E (sIgE) antibodies towards the galactose-α(1,3)-galactose (α-gal) moieties may elicit life-threatening and fatal anaphylactic reactions. Patients sensitized to α-gal moieties from mammalian meat may also react towards mammalian gelatins and gelatin-containing drugs such as bovine gelatin-based colloid plasma substitute. The case of a 56 year old woman with a meat allergy who suffered anaphylaxis to succinylated gelatin is reported.

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